Question

When unpolarised light is incident on a plane glass plate at Brewster’s angle, then which of the following statements is correct?

• A. Reflected and refracted rays are completely polarised with their planes of polarization parallel to each other
• B. Reflected and refracted rays are completely polarised with their planes of polarization perpendicular to each other
• C. Reflected light is plane polarised but transmitted light is partially polarised
• D. Reflected light is partially polarised but refracted light is plane polarised

Answer 1

Answer: (C)

At Brewster’s angle, only the reflected light is plane polarised, but transmitted light is partially polarised.